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Phosphate, telluride, and fluoride glasses allow new fiber laser frequencies. Some nonlinear effects including optical parametric oscillators (OPO), SRS and SBS extend the operating wavelengths while others like SBS prevent high power operation. Our recent advances will be summarized.
We demonstrate that microstructures inside the cladding of phosphate fiber as well as sub-wavelength nanostructures inside the fiber core can introduce birefringence in phosphate glass fiber components.
Phosphate glasses are excellent host materials for lasers using rare-earth ion transitions. Combining highly-doped phosphate glasses and advanced fiber drawing techniques, we developed phosphate glass fiber lasers and will review recent advances in their performance.
Self-imaging and spectral filtering due to multimode interference are utilized to demonstrate an all-fiber laser with active multimode fiber that generates linearly polarized diffraction limited light.
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